As stated by Dr. Frances Cress Welsing, white people are vulnerable to their sense of numerical inadequacy. Most white people consciously or subconsciously understand the following;

White plus Black equals Colored.

White plus Brown equals Colored.

White plus Yellow equals Colored.

The declining white population is not a new or reversible trend - the decline has only quickened. Although rarely discussed, white people are genetic recessive. It is scientific fact that Black is a genetically dominant trait. Whenever Black mixes with White, which is a recessive genetic trait, Black will dominate. In general, this means "whites" cannot reproduce a white child when they have sexual relations with non-whites. The so-called white "race" can and eventually will be replaced or "genetically annihilated" through such assimilation or social intermixing with non-whites. As white populations have been consistently declining, Black and Brown populations are surging. And this scares some racists to death. [MORE]

The above formula is the meaning of what "you will not replace us" and "‘Europe Will Be White." It also is what "Clean Blood’ is referring to - clean white blood.

As far as racists are concerned "replacement" is in fact what is occurring in the US & abroad. Persons who classify themselves as White make up less than 10% of the world's population and their numbers are shrinking fast. That is, 90% of the world population of 7 billion people are non-white.

White people are vastly outnumbered throughout the world and this scares some racists, fueling racism. A recent Reuters poll reflects white people fear of replacement as 31% of participants agreed "America must protect and preserve its White European heritage” and 39 percent agreed with the statement that “White people are currently under attack in this country.” [MORE]

Dr. Welsing explained that [among other things] numerical inadequacy drives white folks to practice racism - to survive and to maintain control of non-whites. [MORE]. Her color confrontation theory explained that the more the white population shrinks the worse its conduct toward non-whites will get. Racists practice racism to survive, it is a strategy for white genetic survival. [MORE]

By the 2018 midterms, it was clear that Trump’s base in the white working class isn’t the only fount of prejudice. White voters without a college degree (which generally confers higher income) support the president more than college-educated whites. But almost four in 10 of the latter back him, too. On Election Day, while Democrats won the House, millions of voters either backed white supremacists or their enablers who stand by any candidate with an R after his name.

An avalanche of other evidence proves that the Trump movement runs on racial fumes:

A nationally representative survey of millennials last year found that 41 percent of white ones voted for Trump because they believed whites were losing out to non-whites — and that resentment of the latter drove the perception, even among educated, employed, better-off whites.

A study published during the 2016 race found that “reminding white Americans high in ethnic identification that non-white racial groups will outnumber whites in the United States by 2042 caused them to become more concerned about the declining status and influence of white Americans as a group ... and caused them to report increased support for Trump and anti-immigrant policies, as well as greater opposition to political correctness." [MORE]